EXNO - Exterior Noise

EXNO - Exterior Noise

Win64, English

Werner & Balci GmbH
To evaluate the quality of sound insulation of windows against exterior noise.

General Usage Instructions

The EXNO is based on German Standard DIN 4109:2016-07 "Sound Insulation in Buildings". It is assumed that you are familiar with this standard and that you want it to run an analysis according to DIN 4109:2016-07. If you haven’t read this standard, please read the standard and the detailed manual to acquire more information about EXNO.


Please follow the overall order to implement a successful EXNO calculation.

  1. Use button “Initialize (Data)”, to create the necessary Schedules, Parameters, and Views.
  2. Definition of several parameters: the Room types for rooms needed protection; The function of Walls, Exterior or Interior; the noise level or noise level range for Exterior Walls and Roofs; the density and width of the structure layer from Exterior Walls and Roofs.
  3. Use button “Import (Ventilator)”, to choose the “Ventilator.rfa” file for ventilator family. Define some ventilator types if necessary.
  4. Select several Windows and use button “Set (Ventilator)” to allocate ventilator to selected Windows.
  5. Use button “Check (Data)” to acquire the validation of data for calculation.
  6. Use button “All (Calculate)” to run the calculation. If you don’t want to calculate all the rooms, you can select some rooms and use button “Selected (Calculate)”.
  7. After the calculation is done, the results can be reviewed in “Room List_EXNO” and some other EXNO-views. Exporting to an Excel file is also supported.



The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10) and uninstall as you would any other application from your system.

Additional Information

Known Issues


Company Name: Werner & Balci GmbH
Support Contact: info@balci.de

Author/Company Information

Werner & Balci GmbH

Support Information

If you have any question, please contact us via info@balci.de

Version History

Version Number Version Description


Original Version
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